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 2018-19/
Seminari A.A. 2018-2019
 
 
I Seminari si svolgono il martedì alle 14:30 nell'aula 311 del Dipartimento di Matematica (salvo diversa indicazione)
  
 
Relatore
Titolo
Data
  
 
 
Davide Macera
Universtà Roma Tre
Quantizzazione della conduttività di Hall per operatori random
05 luglio 2019
  
 
 
Dimitri Tsagkarogiannis
Università dell'Aquila
Virial inversion and microscopic derivation of density functionals
02 luglio 2019
(ore 11:30)
  
 
 
Federico Bonetto
Georgia Institute
of Technology
The Kac model and (non-)equilibrium statistical mechanics
04 giugno 2019
  
 
 
Eveliina Peltola
Université de Genève
Crossing probabilities of multiple Ising interfaces
09 maggio 2019
  
 
 
Sebastien Ott
Université de Genève
Entropic repulsion in low temperature 2D Potts model
and critical pre-wetting in 2D Ising model
26 marzo 2019
  
 
 
Giovanni Antinucci
Universität
Zürich
A hierarchical supersymmetric model for weakly disordered 3d semimetals
12 marzo 2019
  
 
Abstract
ritorna
An important open problem in quantum mechanics is to prove that noninteracting, disordered 3d quantum systems exhibit a localization-delocalization transition as a function of the disorder strength. From a mathematical viewpoint, a lot is known about the localized phase for strong disorder, much less about the delocalized phase at small disorder. In this talk I will present results for a hierarchical supersymmetric model for a class of disordered 3d gapless quantum systems, called Weyl semimetals. In the absence of disorder, the main feature of these systems is the pointlike nature of the Fermi surface. We use rigorous renormalization group methods to compute the correlation functions of the system. In particular, I will present a theorem about the algebraic decay of the averaged two-point correlation function, compatible with delocalization. Our method is based on a rigorous implementation of renormalization group, reminiscent of the Gawedzki-Kupiainen block spin transformations; the main technical novelty is the multiscale analysis of massless Gaussian measures with purely imaginary covariances. Joint work with Luca Fresta and Marcello Porta.
 
 
 
Giovanni Gallavotti
Università
La Sapienza
Navier-Stokes equation: irreversibility, turbulence and ensembles equivalence
19 febbraio 2019
  
 
 
Hugo Duminil-Copin
IHES &
Université de Genève
Phase transition of Bernoulli percolation via the Gaussian free field
12 febbraio 2019
  
 
 
Salvador Miracle-Sole
CNRS Marseille
Wulff shape associated to the Ising model
17 gennaio 2019
(giovedì aula F)
  
 
 
Carlangelo Liverani
Università Tor Vergata
Dynamical systems as Markov chains
08 gennaio 2019
  
 
 
Federico Bonetto
Georgia Tech
Autonomous evolution of electron speeds in a thermostatted system:
exact results
18 dicembre 2018
(ore 15:30)
  
 
 
Massimo Moscolari
Università
"La Sapienza"
Beyond Diophantine Wannier diagrams:
gap labelling for Bloch-Landau Hamiltonians
18 dicembre 2018
  
 
 
Niels Benedikter
IST Austria
Optimal upper bound for the correlation energy of the mean-field Fermi gas
27 novembre 2018
  
 
 
Guido Gentile
Università Roma Tre
Periodic and quasi-periodic attractors of the spin-orbit dynamics of Mercury
15 novembre 2018
(giovedì Aula 211)
  
 
 
Clément Erignoux
Università Roma Tre
Hydrodynamics for a non-ergodic activated exclusion process
23 ottobre 2018